31253688903 has 8 divisors (see below), whose sum is σ = 43015830016. Its totient is φ = 20163670200.

The previous prime is 31253688901. The next prime is 31253688931. The reversal of 31253688903 is 30988635213.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31253688903 - 2¹ = 31253688901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31253688901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168030493 + ... + 168030678.

It is an arithmetic number, because the mean of its divisors is an integer number (5376978752).

Almost surely, 2^31253688903 is an apocalyptic number.

31253688903 is a deficient number, since it is larger than the sum of its proper divisors (11762141113).

31253688903 is a wasteful number, since it uses less digits than its factorization.

31253688903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336061205.

The product of its (nonzero) digits is 933120, while the sum is 48.

The spelling of 31253688903 in words is "thirty-one billion, two hundred fifty-three million, six hundred eighty-eight thousand, nine hundred three".